Axial piston variable pump A1VO series 10

Axial piston variable pump A1VO series 10 RE 92650 Edition: 09.2013 Replaces: 02.2013 izes 18, 35 Nominal pressure 250 bar Maximum pressure 280 bar Open circuit Features Variable axial piston pump of swashplate design for hydrostatic drives in open circuits. The flow is proportional to the drive speed and displacement. The flow can be infinitely varied by adjusting the swashplate angle. A wide range of highly adaptable control devices with different control and regulation functions, for all important applications. Compact design High efficiency High power density Low noise level Contents Ordering code 2 Hydraulic fluid 4 haft seal 5 Operating pressure range 6 Technical data 7 DR Pressure controller 9 D3/D4 Pressure controller with override 10 DR0 Pressure controller with load sensing 11 Dimensions size 18 12 Dimensions size 35 14 Through drive dimensions 16 Overview of attachment options 17 Combination pumps A1VO + A1VO 17 Connector for solenoids 18 Installation instructions 19 General instructions 22 RE 92650 Edition: 09.2013, Bosch Rexroth AG

2 A1VO series 10 Axial piston variable pump Ordering code Ordering code 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 A1V O C 2 0 / 10 B V 1 0 0 Axial piston unit 01 washplate design, variable, nominal pressure 250 bar, maximum pressure 280 bar A1V Operating mode 02 Pump, open circuit O izes (NG) 03 Geometric displacement, see technical data on page 7 018 035 Control devices 018 035 04 Pressure controller DR with override, electric-proportional, negative control U = 12 V D3 U = 24 V D4 with load sensing DR0 Controller design and mounting 05 Cartridge C etting 06 Adjustable 2 Connector for solenoids 1) (see page 18) 018 035 07 Without connector (without solenoid, only with hydraulic controls) 0 DEUTCH molded connector, 2-pin, without suppressor diode P Additional function 08 Without additional function 0 eries 09 eries 1, index 0 10 Configuration of ports and fastening threads 10 ANI, port threads with O-ring seal according to IO 11926, metric fastening thread on through drive version B Directions of rotation 11 Viewed on drive shaft clockwise R counter-clockwise L eals 12 FKM (fluor-caoutchouc) V Mounting flange 018 035 13 AE J744 82-2 A2 101-2 B2 Drive shafts (for permissible input torque, see page 8) 018 035 14 plined shaft ANI B92.1a 5/8 in 9T 16/32DP 2 3/4 in 11T 16/32DP 3 7/8 in 13T 16/32DP2DP 4 1 in 15T 16/32DP 5 = Available = On request = Not available 1) Connectors for other electric components can deviate 2) For size 35, not for through drive Bosch Rexroth AG, RE 92650/09.2013

Axial piston variable pump A1VO series 10 Ordering code 3 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 A1V O C 2 0 / 10 B V 1 0 0 ervice line ports 15 Threaded ports B and, at side, opposite 1 Through drives (for attachment options, see page 17) 16 Flange AE J744 Hub for splined shaft 3) Diameter Attachment 4) Designation Diameter Designation 018 035 82-2 (A) A2 5/8 in 9T 16/32 DP 2 A22 3/4 in 11T 16/32 DP 3 A23 7/8 in 13T 16/32 DP 4 A24 101-2 (B) B2 7/8 in 13T 16/32 DP 4 B24 1 in 15T 16/32 DP 5 B25 Without through drive 0000 Additional function 17 Without additional function 0 tandard / special version 18 tandard version 0 = Available = On request = Not available 3) According to ANI B92.1a 4) Mounting drillings pattern viewed on through drive, with service line port B on right. RE 92650/09.2013, Bosch Rexroth AG

4 A1VO series 10 Axial piston variable pump Hydraulic fluid Hydraulic fluid Before starting project planning, please refer to our data sheet 90220 (mineral oil) for detailed information regarding the selection of hydraulic fluid and application conditions. Further hydraulic fluids only after approval examination. Please contact us. election diagram Viscosity ν [mm 2 /s] -40 1600-20 0 20 40 60 80 100 1600 1000 600 400 200 100 60 40 20 10 VG 22 VG 32 VG 46 VG 68 VG 100 5 5-40 -25-10 0 10 30 50 70 90 115 Temperature t [ C] 36 16 ν opt t min = -40 C Hydraulic fluid temperature range t max = +115 C Viscosity and temperature of hydraulic fluid Details regarding the selection of hydraulic fluid The correct selection of hydraulic fluid requires knowledge of the operating temperature in relation to the ambient temperature, in an open circuit the reservoir temperature. The hydraulic fluid should be selected so that the operating viscosity in the operating temperature range is within the optimum range (ν opt see shaded area of the selection diagram). We recommended that the higher viscosity class be selected in each case. Example: At an ambient temperature of X C, an operating temperature of 60 C is set in the circuit. In the optimum operating viscosity range (ν opt, shaded area), this corresponds to the viscosity classes VG 46 or VG 68; to be selected: VG 68. Note The case drain temperature, which is affected by pressure and rotational speed, can be higher than the reservoir temperature. At no point of the component may the temperature be higher than 115 C. The temperature difference specified below is to be taken into account when determining the viscosity in the bearing. If the above conditions cannot be maintained due to extreme operating parameters, please contact us. Transport and storage at ambient temperature Viscosity [mm 2 /s] Temperature Comment T min -50 C T opt = +5 C to +20 C factory preservation: up to 12 months with standard, up to 24 months with long-term (Cold) start-up ν max = 1600 T t -25 C t 1 min, without load (p 30 bar), n 1000 rpm Permissible temperature difference ΔT 25 K between axial piston unit and hydraulic fluid Warm-up phase ν < 1600 to 400 at p 0.7 p nom, n 0.5 n nom and t 15 min Operating phase Temperature difference ΔT = approx. 5 K between hydraulic fluid in the bearing and at port L Maximum temperature 115 C in the bearing 110 C measured at port L Continuous operation ν = 400 to 10 ν opt = 36 to 16 T = -25 C to +90 C measured at port L, no restriction within the permissible data hort-term operation ν min 10 T max = +110 C measured at port L, t < 1 min, p < 0.3 p nom FKM shaft seal T +115 C see page 5 Bosch Rexroth AG, RE 92650/09.2013

Axial piston variable pump A1VO series 10 haft seal 5 Filtration of the hydraulic fluid Finer filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit. To ensure the functional reliability of the axial piston unit, a gravimetric analysis of the hydraulic fluid is necessary to determine the amount of solid contaminant and to determine the cleanliness level according to IO 4406. A cleanliness level of at least 20/18/15 is to be maintained. At very high hydraulic fluid temperatures (90 C to maximum 115 C), a cleanliness level of at least 19/17/14 according to IO 4406 is necessary. If the above levels cannot be achieved, please contact us. haft seal The FKM shaft seal may be used for case drain temperatures from -25 C to +115 C. Note For the temperature range below -25 C, the values in the table on page 4 are to be observed. RE 92650/09.2013, Bosch Rexroth AG

6 A1VO series 10 Axial piston variable pump Operating pressure range Operating pressure range Pressure at service line port B Definition Nominal pressure p nom 250 bar absolute The nominal pressure corresponds to the maximum design pressure. Maximum pressure p max 280 bar absolute The maximum pressure corresponds to the maximum operating pressure within ingle operating period 0.05 s the single operating period. The sum of the single operating periods must not exceed Total operating period 14 h the total operating period (maximum number of cycles: approx. 1 million). Minimum pressure p B abs (high-pressure side) 14 bar 1) absolute Minimum pressure on the high-pressure side (B) which is required in order to prevent damage to the axial piston unit. Rate of pressure change R A max 16000 bar/s Maximum permissible rate of pressure build-up and reduction during a pressure change over the entire pressure range. Pressure at suction port (inlet) Minimum pressure p min 0.8 bar absolute Minimum pressure at suction port (inlet) which is required in order to avoid damage to the axial piston unit. The minimum pressure depends on the rotational speed and displacement of the axial piston unit. Maximum pressure p max 5 bar absolute Case drain pressure at port L 1, L 2 Maximum pressure p L max 2 bar absolute Maximum 0.5 bar higher than inlet pressure at port, but not higher than p L max. Rate of pressure change R A max Pressure p p nom p t Note Operating pressure range valid when using hydraulic fluids based on mineral oils. Values for other hydraulic fluids, please contact us. Time t Pressure definition ingle operating period t 1 t 2 t n Maximum pressure p max Nominal pressure p nom Pressure p Minimum pressure (high-pressure side) Time t Total operating period = t 1 + t 2 +... + t n 1) Please contact us about lower pressures Bosch Rexroth AG, RE 92650/09.2013

Axial piston variable pump A1VO series 10 Technical data 7 Technical data ize NG 18 35 Displacemet geometric, per revolution Maximum rotational speed 1)2) at V g max at V g V g max V g max cm 3 18 V g min cm 3 0 n nom n max rpm rpm 3300 3300 35 0 3000 3000 Flow at n nom and V g max q v L/min 59 105 Power at n nom, V g max and Δp = 250 bar P kw 25 44 Torque at V g max and Δp = 250 bar T Nm 72 139 Rotary stiffness 5/8 in 9T 16/32DP 2 c knm/rad 6.2 drive shaft 3/4 in 11T 16/32DP 3 c knm/rad 9.9 7/8 in 13T 16/32 DP 4 c knm/rad 18.6 1 in 15T 16/32DP 5 c knm/rad 22.9 Moment of inertia for rotary group J TW kgm 2 0.000505 0.00159 Maximum angular acceleration 5) α rad/s² 6800 5000 Case volume V L 0.5 0.6 Weight (without through drive) approx. m kg 11 16.9 Determining the operating characteristics Flow q v = V g n η v 1000 [L/min] Torque T = V g Δp 20 π η mh [Nm] Power P = 2 π T n q v Δp = 60000 600 η t [kw] Key V g = Displacement per revolution [cm 3 ] Δp = Differential pressure [bar] n = Rotational speed [rpm] η v = Volumetric efficiency η mh = Mechanical-hydraulic efficiency η t = Total efficiency (η t = η v η mh ) Note Theoretical values, without efficiency and tolerances; values rounded. Operation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in the destruction of the axial piston unit. We recommend testing the loads by means of experiment or calculation / simulation and comparison with the permissible values. 1) The values are valid: for the optimum viscosity range from ν opt = 36 to 16 mm 2 /s with hydraulic fluid based on mineral oils for a pressure p suction 1 bar absolute at suction port. 2) For a pressure p suction < 1 bar at suction port, please contact us. 3) The data are valid for values between the minimum required and maximum permissible rotational speed. Valid for external excitation (e.g., diesel engine 2 to 8 times rotary frequency; cardan shaft twice the rotary frequency). The limit value applies for a single pump only. The load capacity of the connection parts must be considered. RE 92650/09.2013, Bosch Rexroth AG

8 A1VO series 10 Axial piston variable pump Technical data Permissible input and through-drive torques ize NG 18 35 Torque at V g max and Δp = 250 bar 1) T max Nm 72 139 Input torque at drive shaft, maximum 2) 2 5/8 in T E max Nm 59 3 3/4 in T E max Nm 143 4 7/8 in T E max Nm 5 1 in T E max Nm 319 Maximum through-drive torque T D max Nm 72 139 Torque distribution T1 T2 TE 1st pump 2nd pump T3 TD Torque at 1st pump T 1 Torque at 2nd pump T 2 Torque at 3rd pump T 3 Input torque T E = T 1 + T 2 + T 3 T E < T E max Through-drive torque T D = T 2 + T 3 T D < T D max Note For axial and/or radial forces (pinion, v-belt), please contact us! 1) Efficiency not considered 2) For drive shafts without radial force Bosch Rexroth AG, RE 92650/09.2013

Axial piston variable pump A1VO series 10 DR Pressure controller 9 DR Pressure controller The pressure controller limits the maximum pressure at the pump outlet within the control range of the variable pump. The variable pump only delivers as much hydraulic fluid as is required by the consumers. If the operating pressure exceeds the setpoint value set at the pressure valve, the pump will regulate to a smaller displacement to reduce the control differential. Basic position in depressurized state: V g max. etting range 1) for pressure control: 100 to 250 bar. tandard is 250 bar. chematic DR B X Characteristic DR 250 Operating pressure p [bar] Hysteresis/pressure rise Δp max L 1 L 2 Controller data NG 18 35 Hysteresis and repeat precision Δp Maximum 5 bar Pilot fluid consumption Maximum approx. 3 L/min 100 q v min Flow q V [L/min] q v max 1) In order to prevent damage to the pump and the system, the permissible setting range must not be exceeded. Lower values on request RE 92650/09.2013, Bosch Rexroth AG

10 A1VO series 10 Axial piston variable pump D3/D4 Pressure controller with override D3/D4 Pressure controller with override With electric pressure adjustment using a proportional solenoid, the high pressure can be infinitely adjusted depending on the solenoid current. When the load pressure is changed at the consumer, the pump flow volume is adjusted so that the specified pressure is achieved again. If the solenoid current drops below the beginning of control, the unit will go to the set maximum pressure. The same thing applies if the pilot signal is lost. Current-pressure characteristic (negative characteristic) 250 D3/D4 Deactivation of control Operating pressure p [bar] 140 Maximum adjustable controller pressure Minimum adjustable controller pressure 0 Current I/I max 1 Characteristic measured with pump in zero stroke. Further information on request. Bosch Rexroth AG, RE 92650/09.2013

Axial piston variable pump A1VO series 10 DR0 Pressure controller with load sensing 11 DR0 Pressure controller with load sensing In addition to the pressure controller function (DR), the load sensing controller works as a load-pressure controlled flow controller and adjusts the displacement of the pump to the volume required by the consumer. The loadsensing controller compares pressure before and after the measuring orifice and keeps the pressure drop (differential pressure p) across the orifice and therefore the flow constant. The swiveling in due to the pressure or flow controller will always take priority. etting range 1) for pressure control: 100 to 250 bar. Note The DR0 version has no connection from X to the reservoir so the L relief has to be incorporated into the system. chematic DR0 B 0 DR X Characteristic DR0 250 Operating pressure p [bar] Hysteresis/pressure rise Δp max L 1 L 2 Differential pressure Δp tandard setting: 14 bar. If another setting is required, please state in plain text. Controller data For data for the pressure controller DR, please refer to page 9. Maximum flow differential (hysteresis and increase) measured at drive speed n = 1500 rpm and 100 t fluid = 50 C NG 18 35 q v min Flow q V [L/min] q v max Flow difference Δq V max Maximum control fluid consumption, approx. 3 L/min 4 L/min Characteristic at variable rotational speed Flow qv [L/min] q V max Hysteresis ΔqV max q V min n min Rotational speed n [rpm] n max 1) In order to prevent damage to the pump and the system, the permissible setting range must not be exceeded. Lower values on request RE 92650/09.2013, Bosch Rexroth AG

12 A1VO series 10 Axial piston variable pump Dimensions size 18 Dimensions [mm] Dimensions size 18 DR Pressure controller / DR0 Pressure controller with load sensing clockwise rotation max. 9.7 max. 6.4 Flange A2 IO 3019-1 175.7 138.1 70.5-0.054 ø82.55 73 58.5 Y 11.2 X 106.4 133 View X L 2 L 1 View Y 157.6 127.6 127.6 (X, L1, B) 48 48 52.2 52.2 X 56 32 17.5 31 B 139 Bosch Rexroth AG, RE 92650/09.2013

Dimensions [mm] Axial piston variable pump A1VO series 10 Dimensions size 18 13 plined shaft AE J744 3 3/4 in 11T 16/32DP 1) 30 Ø 45.2 1/4-20UNC-2B 2)3) 5 16 Ø 21.9 16.5 38 Ports tandard 4) ize 3) p max abs [bar] 5) tate 8) B ervice line port IO 11926 1 1/16-12UN-2B; 20 deep 280 O uction port IO 11926 1 5/16-12UN-2B; 20 deep 5 O L 1 Case drain fluid IO 11926 9/16-18UNF-2B; 13 deep 10 O 6) L 2 Case drain fluid IO 11926 9/16-18UNF-2B; 13 deep 10 X 6) X Pilot signal IO 11926 7/16-20UNF-2B; 12 deep 280 O 7) 1) Involute spline according to ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Observe the general instructions on page 22 for the maximum tightening torques. 4) The spot face can be deeper than specified in the appropriate standard. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) Depending on installation position, L or L1 L2 must be connected (see also installation instructions on page 19). 7) Only if an 0 controller is present. 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation) RE 92650/09.2013, Bosch Rexroth AG

14 A1VO series 10 Axial piston variable pump Dimensions size 35 Dimensions [mm] Dimensions size 35 DR Pressure controller / DR0 Pressure controller with load sensing clockwise rotation max. 9.7 max. 6.4 203 Flange B2 IO 3019-1 163 ø 14.3 74.5-0.05 ø101.6 86 73 Y X 146 174 View X L 2 L 1 View Y 182.5 149 149 (X, L1, B) 57 57 61 61 X 69.5 B 163 Bosch Rexroth AG, RE 92650/09.2013

Dimensions [mm] Axial piston variable pump A1VO series 10 Dimensions size 35 15 plined shaft AE J744 4 7/8 in 13T 16/32DP 1) 5 1 in 15T 16/32DP 1) 1/4-20UNC-2B 2)3) Ø 56.9 5 16 33 Ø 25 1/4-20UNC-2B 2)3) Ø 56.9 5 16 38 Ø 25 18 23 41 46 Ports tandard 4) ize 3) p max [bar] 5) tate 8) B ervice line port IO 11926 1 5/16-12UN-2B; 20 deep 280 O uction port IO 11926 1 5/8-12UN-2B; 20 deep 5 O L 1 Case drain fluid IO 11926 3/4-16UNF-2B; 15 deep 10 O 6) L 2 Case drain fluid IO 11926 3/4-16UNF-2B; 15 deep 10 X 6) X Pilot signal IO 11926 7/16-20UNF-2B; 12 deep 280 O 7) 1) Involute spline according to ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Observe the general instructions on page 22 for the maximum tightening torques. 4) The spot face can be deeper than specified in the appropriate standard. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) Depending on installation position, L or L1 L2 must be connected (see also installation instructions on page 19). 7) Only if an 0 controller is present. 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation) RE 92650/09.2013, Bosch Rexroth AG

16 A1VO series 10 Axial piston variable pump Through drive dimensions Dimensions [mm] Through drive dimensions Flange AE J744 Hub for splined shaft 1) Availability NG hort code Diameter Attachment 2) Designation Diameter Designation 018 035 82-2 (A) A2 5/8 in 9T 16/32 DP 2 A22 3/4 in 11T 16/32 DP 3 A23 7/8 in 13T 16/32 DP 4 A24 101-2 (B) B2 7/8 in 13T 16/32 DP 4 B24 1 in 15T 16/32 DP 5 B25 = Available = On request = Not available 82-2 (A) 101-2 (B) 106.4 M10 x 1.5 M2 8 146 M12 x 1.75 M2 11 +0.05 Ø82.55 +0.02 +0.05 Ø101.6 +0.02 M1 (to mounting flange) M1 (to mounting flange) hort NG M1 M2 code A22 18 199.2 32 35 227.6 32 A23 18 199.2 38 35 227.6 38 A24 18 199.2 41 35 227.6 41 hort NG M1 M3 code B24 35 227.6 41 B25 35 227.6 46 1) According to ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Mounting drilling pattern viewed on through drive with service line port B on right. 3) Continuous thread according to DIN 13; observe the general instructions on page 22 for the maximum tightening torques. Bosch Rexroth AG, RE 92650/09.2013

Dimensions [mm] Axial piston variable pump A1VO series 10 Overview of attachment options 17 Overview of attachment options Through drive 1) Attachment options 2nd pump Flange Hub for splined shaft hort code A1VO/10 NG (shaft) A4VG/32 NG (shaft) A10VG/10 NG (shaft) A10VO/52/53 NG (shaft) A10VNO/52/53 NG (shaft) A10V()O/31 NG (shaft) External gear pump 2) 82-2 (A) 5/8 in A22 18 (2) 10 (U), 18 (U) 3/4 in A23 18 (3) 10 (), 18 (, R) 18 (U) eries F 28 (R) 18 (, R) 101-2 (B) 7/8 in B24 35 (4) 18 () 28 (, R) 28 (, R) eries N eries G 1 in B25 35 (5) 28 () 28 () Combination pumps A1VO + A1VO Total length A A1VO (1st pump) A1VO (2nd pump) NG18 NG35 NG18 375 NG35 403.3 431 By using combination pumps, it is possible to have independent circuits without the need for splitter gearboxes. When ordering combination pumps, the type designations of the 1st and 2nd pump must be linked by a "+". Order example: A1VO035DR0C100/10BRVB251B2500+ 1st Pump 2nd Pump A1VO035DR0C100/10BRVB251000000 A tandem pump consisting of two equal sizes is permissible without additional supports assuming that the dynamic A mass acceleration does not exceed maximum 10 g (= 98.1 m/s2). For combination pumps consisting of more than two pumps, the mounting flange must be rated for the permissible mass torque. 1) Additional through drives are available on request 2) Bosch Rexroth recommends special versions of the external gear pumps. Please contact us. RE 92650/09.2013, Bosch Rexroth AG

18 A1VO series 10 Axial piston variable pump Connector for solenoids Dimensions [mm] Connector for solenoids DEUTCH DT04-2P-EP04 Molded connector, 2-pin, without bidirectional suppressor diode. There is the following type of protection with mounted mating connector: 36.7 36.7 (2) (1) IP67 (DIN/EN 60529) and IP69K (DIN 40050-9) ø37 Circuit symbol 50 68.5 Mating connector DEUTCH DT06-2-EP04 Consisting of DT designation 1 housing DT06-2-EP04 1 wedge W2 2 sockets 0462-201-16141 The mating connector is not included in the scope of supply. This can be supplied by Bosch Rexroth on request (material number R902601804). Changing connector orientation If necessary, you can change the connector orientation by turning the solenoid housing. To do this, proceed as follows: Loosen the mounting nut (1) of the solenoid. To do this, turn the mounting nut (1) one turn counter-clockwise. Turn the solenoid body (2) to the desired orientation. Retighten the mounting nut. Tightening torque: 5+1 Nm. (size WAF 26, 12-sided DIN 3124) On delivery, the connector orientation may differ from that shown in the brochure or drawing. Bosch Rexroth AG, RE 92650/09.2013

Axial piston variable pump A1VO series 10 Installation instructions 19 Installation instructions General During commissioning and operation, the axial piston unit must be filled with hydraulic fluid and air bled. This must also be observed following a relatively long standstill as the axial piston unit may drain back to the reservoir via the hydraulic lines. Particularly in the installation position drive shaft up/down filling and air bleeding must be carried out completely as there is, for example, a danger of dry running. The case drain fluid in the pump housing must be directed to the reservoir via the highest available drain port (L 1, L 2 ). For combinations of multiple units, the case drain fluid must be drained off at each pump. If a shared reservoir line is used for this purpose, make sure that the case pressure in each pump is not exceeded. In the event of pressure differences at the drain ports of the units, the shared drain line must be changed so that the minimum permissible case pressure of all connected units is not exceeded in any situation. If this is not possible, separate drain lines must be laid if necessary. To achieve favorable noise values, decouple all connecting lines using elastic elements and avoid above-reservoir installation. In all operating conditions, the suction and drain lines must flow into the reservoir below the minimum fluid level. The permissible suction height h results from the overall loss of pressure; it must not, however, be higher than h max = 800 mm. The minimum suction pressure at port must also not fall below 0.8 bar absolute during operation and during a cold start. When designing the reservoir, ensure adequate space between the suction line and the drain line. This prevents the heated, return flow from being drawn directly back into the suction line. Installation position ee examples 1 to 11 below. Additional installation positions are available upon request. Recommended installation positions: 1 and 2 Below-reservoir installation (standard) Below-reservoir installation means that the axial piston unit is installed outside of the reservoir below the minimum fluid level. Installation position Air bleed Filling 1 L 1 + L 1 B h t m h m L1 2 L 2 + L 2 B h t min h min L2 3 B L 1 or L 2 + L 1 or L 2 h t min h min L1 Note In certain installation positions, an influence on the control characteristics can be expected. Gravity, dead weight and case pressure can cause minor shifts in control characteristics and changes in response time. 4 1) h t min B L 1 or L 2 + L 1 or L 2 h min 1) Because complete air bleeding and filling are not possible in this position, the pump should be air bled and filled in a horizontal position before installation. L2 RE 92650/09.2013, Bosch Rexroth AG

20 A1VO series 10 Axial piston variable pump Installation instructions Above-reservoir installation Above-reservoir installation means that the axial piston unit is installed above the minimum fluid level of the reservoir. To prevent the axial piston unit from draining in position 8, the height difference h E min must be at least 25 mm. Observe the maximum permissible suction height h max = 800 mm. Installation position Air bleed Filling 5 L 1 L 1 L 1 Inside-reservoir installation Inside-reservoir installation is when the axial piston unit is installed in the reservoir below the minimum fluid level. The axial piston unit is completely below the hydraulic fluid. If the minimum fluid level is equal to or below the upper edge of the pump, see chapter "Above-reservoir installation". Axial piston units with electric components (e.g., electric controls, sensors) may not be installed in a reservoir below the fluid level. Installation position Air bleed Filling 6 B h m h t m h mi L 2 L 2 9 L1 B h t min h min Via the highest available port L 1 Automatically via the open port L 1 due to the position under the hydraulic fluid level L 2 7 h max h t min h min L 1 B L 1 or L 1 or 10 h t min h min B L2 Via the highest available port L 2 Automatically via the open port L 2 due to the position under the hydraulic fluid level 11 1) h max B h t min h t min B L2 h min 8 1) h E min L 1 L 1 h min L 1 h max h t min h min B 1) Because complete air bleeding and filling are not possible in this position, the pump should be air bled and filled in a horizontal position before installation. Key L T B h t min h min h E min h max Filling / air bleed uction port Drain port Baffle (baffle plate) Minimum required immersion depth (200 mm) Minimum required distance to reservoir bottom (100 mm) Minimum necessary height to prevent the axial piston unit from draining (25 mm) Maximum permissible suction height (800 mm) Bosch Rexroth AG, RE 92650/09.2013

Axial piston variable pump A1VO series 10 Installation instructions 21 RE 92650/09.2013, Bosch Rexroth AG

22 A1VO series 10 Axial piston variable pump General instructions General instructions The A1VO pump is designed to be used in open circuit. The project planning, installation and commissioning of the axial piston unit requires the involvement of skilled person. Before using the axial piston unit, please read the corresponding instruction manual completely and thoroughly. If necessary, these can be requested from Bosch Rexroth. During and shortly after operation, there is a risk of burns on the axial piston unit and especially on the solenoids. Take appropriate safety measures (e.g., by wearing protective clothing). Depending on the operating conditions of the axial piston unit (operating pressure, fluid temperature), the characteristic may shift. ervice line ports: The ports and fastening threads are designed for the specified maximum pressure. The machine or system manufacturer must ensure that the connecting elements and lines correspond to the specified application conditions (pressure, flow, hydraulic fluid, temperature) with the necessary safety factors. The service line ports and function ports can only be used to accommodate hydraulic lines. The data and notes contained herein must be adhered to. Before finalizing your design, request a binding installation drawing. Not all variants of the product are approved for use in safety functions according to IO 13849. Please consult the responsible contact person at Bosch Rexroth if you require reliability parameters (e.g. MTTF d ) for functional safety. Pressure controllers are not backups against pressure overload. A separate pressure-relief valve is to be provided in the hydraulic system. The following tightening torques apply: Fittings: Observe the manufacturer s specifications regarding the tightening torques of the fittings used. Mounting bolts: For mounting bolts with metric IO thread according to DIN 13 or with thread according to AME B1.1, we recommend checking the tightening torque in individual cases in accordance with VDI 2230. Female threads of the axial piston unit: The maximum permissible tightening torques M G max are maximum values for the female threads and must not be exceeded. For values, see the following table. Threaded plugs: For the metallic threaded plugs supplied with the axial piston unit, the required tightening torques of threaded plugs M V apply. For values, see the following table. Ports Maximum permissible tightening torque of the female threads M G max Required tightening torque of the threaded plugs M V tandard Thread size IO 11926 7/16-20UNF-2B 40 Nm 18 Nm 3/16 in 9/16-18 UNF-2B 80 Nm 35 Nm 1/4 in 3/4-16 UNF-2B 160 Nm 70 Nm 5/16 in 1 1/16-12 UNF-2B 360 Nm 170 Nm 9/16 in 1 5/16-12 UN-2B 540 Nm 270 Nm 5/8 in 1 5/8-12 UN-2B 960 Nm 320 Nm 3/4 in WAF Hexagon socket of the threaded plugs Bosch Rexroth AG Mobile Applications An den Kelterwiesen 14 72160 Horb a.n., Germany Tel. +49 7451 92-0 info.ma@boschrexroth.de www.boschrexroth.com This document, as well as the data, specifications and other information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproduced or given to third parties without its consent. The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. Bosch Rexroth AG, RE 92650/09.2013

Axial piston variable pump A1VO series 10 23

24 A1VO series 10 Axial piston variable pump Bosch Rexroth AG Mobile Applications An den Kelterwiesen 14 72160 Horb a.n., Germany Tel. +49 7451 92-0 info.ma@boschrexroth.de www.boschrexroth.com This document, as well as the data, specifications and other information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproduced or given to third parties without its consent. The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging.